User blog:DonutHawk35/Rate my PVP team?

So can anyone make some suggestions for my PBB team? Trying to stick on the non-meta side of things, so please don't suggest Charizards and Greninjas.

Dugtrio @ Focus Sash Ability: Arena Trap EVs: 252 Atk / 6 Def / 252 Spe Jolly Nature - Sucker Punch - Memento - Earthquake - Reversal

Volcarona @ Buginium Z Ability: Flame Body EVs: 252 SpA / 6 SpD / 252 Spe Timid Nature IVs: 0 Atk - Fiery Dance - Bug Buzz - Roost - Quiver Dance

Mamoswine @ Life Orb Ability: Thick Fat EVs: 6 HP / 252 Atk / 252 Def Adamant Nature - Earthquake - Ice Shard - Icicle Crash - Roar

Slowbro-Mega @ Slowbronite Ability: Shell Armor EVs: 6 HP / 252 Def / 252 SpA Bold Nature IVs: 0 Atk - Psyshock - Scald - Calm Mind - Slack Off

Snorlax @ Leftovers Ability: Thick Fat EVs: 6 HP / 252 Def / 252 SpD Sassy Nature - Body Slam - Curse - Earthquake - Rest

Mandibuzz (F) @ Leftovers Ability: Overcoat EVs: 6 HP / 252 Def / 252 SpD Careful Nature IVs: 0 Atk - Defog - Foul Play - Toxic - Roost